Certain chiefs in Eastern Nigeria were called warrant chiefs because they

• A. had some royal connections
• B. were created by the British
• C. had warrants to arrest offenders
• D. were the first to receive Western education.

Sierra Leone is home to a rich musical tradition, with one popular genre known as

• A. Maringa
• B. Reggae
• C. Highlife
• D. Salsa

Which of the following will not affect the degree of hardness in a sample of temporarily hard water?

• A. Addition of washing soda
• B. Adding of soap
• C. Treatment with carbon exchange resin
• D. Filtration

In his reference to the events of the day of Pentecost, Peter said that they were the fulfillment of the prophecy of

• A. Jeremiah
• B. Joel
• C. Jonah
• D. Isaiah

Factory buildings, machinery and raw materials are known in Economics as

• A. personal wealth
• B. social wealth
• C. government wealth
• D. business wealth

Which of the following statements is true regarding the melting and boiling points of pure substances?

• A. The boiling point is always higher than the melting point
• B. The melting point is always higher than the boiling point
• C. The melting and boiling points are always the same for all substances
• D. The melting and boiling points can vary depending on the substance

Which organic compound is responsible for the characteristic aroma of fruits?

• A. Alkane
• B. Alkyne
• C. Ester
• D. Amine

If M and N are the points (-3, 8) and (5, -7) respectively, find |MN|

• A. 8 units
• B. 11 units
• C. 15 units
• D. 17 units

In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.

The teacher gave him high marks and wrotecomplimentaryremarks in the margin, which surprisingly gave him...........feelings.

• A. doubtful
• B. secret
• C. unpleasant
• D. serious

(a) Statetwo differences between a sound wave and a radio wave.

(b) Explain why a vibrating tuning fork sounds louder when its stem is pressed against a table top than when held in air.

(c)Statetwo conditions necessary for the:

• production of stationary wave in a medium;
• formation of interference wave patterns;
• occurrence of total internal reflection of a wave.

(d) A ray of light is incident on one face of an equilateral glass prism.

• Draw a ray diagram to show the path of the ray through the prism.
• Calculate the refractive index of the glass if the angle of minimum deviation is 41\(^o\).